Code point
U+2351
Glyph appearance depends on your fonts.
U+2351
SoU+2351 APL FUNCTIONAL SYMBOL UP TACK OVERBAR is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Miscellaneous Technical block.
Choose the representation you need, then copy its value.
U+2351
9041
⍑
⍑
E2 8D 91
2351
00002351
%E2%8D%91
\u2351
\u2351
\u2351
\2351